JP2011068290A - Occupant protection device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suppress the movement of an airbag outward in the lateral direction of a vehicle (to the outside of the vehicle) when the airbag is pressed by an occupant when the vehicle receives a shock and the airbag is deployed even if a door sash and a center pillar are not set for the vehicle. <P>SOLUTION: An airbag 3 for a front seat is provided in a door 1, and a connection ring 33 is attached to the front end of the bag body 29 of the airbag 3. An airbag 7 for a rear seat is provided in a vehicle body side part 5 at the rear of the door 1, and a connection ring 35 is attached to the front end of the bag body 31 of the airbag 7. A movable roll bar 9 is further provided in the vehicle body side part 5 at the rear of the door 1. When the movable part 13 operates so as to project upward from the inside of the outer tube part 11, the movable roll bar 9 is brought into a connected state since the front end of the movable part 13 is inserted into the connection rings 33, 35 of the airbags 3, 7 which are deployed generally at the same time as the movable roll bar 9. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an occupant protection device including an airbag and a movable roll bar.

  In an open car that is a vehicle that does not have a roof or that can be opened and closed, covers the top and sides of the occupant's head from the top of the roll bar placed behind the seat when the vehicle collides or rolls over An occupant protection device provided with an airbag that deploys in this manner is known (see Patent Document 1 below).

  In addition, when the side airbag is deployed, the side door and its door sash, and the net that spreads in a state where tension is applied outside the side airbag, suppresses the movement of the deployed side airbag in the vehicle exterior direction. Is known (see Patent Document 2 below).

JP 2006-306324 A JP-A-10-297413

  By the way, in the thing of the above-mentioned patent document 1, since the developed airbag is supported in a cantilevered manner by the roll bar which is the storage portion, when the vehicle receives an impact such as when the vehicle rolls over or at the time of collision. In addition, the airbag may be pushed outward by the passenger and move outward in the vehicle width direction (outward direction of the vehicle).

  On the other hand, although the thing of patent document 2 can suppress the movement to the vehicle width direction outside of the developed airbag, since the door sash which has fixed the airbag in this case is required, It cannot be applied to vehicles such as open cars that do not have door sashes or center pillars.

  Therefore, even if the vehicle is not set with a door sash or a center pillar, the present invention is directed to the outer side of the airbag in the vehicle width direction (outward direction of the vehicle) by being pushed by the occupant when the vehicle receives an impact. The purpose is to suppress movement.

  The present invention relates to a movable roll bar when the movable roll bar protrudes upward between the leading end of the movable roll bar in the upward projecting direction and the vicinity of the upper end of the bag body when the airbag is deployed. The tip is provided with a connecting portion that connects to the vicinity of the upper end of the bag body before deployment.

  According to the present invention, the vicinity of the upper end of the airbag body of the airbag to be deployed is connected to the tip of the movable roll bar that projects upward, so that the lower side of the airbag in the deployed state is stored before deployment. The upper side is supported by the tip of the movable roll bar, so that even if the vehicle does not have a door sash or center pillar, the vehicle will be shocked. When received, the movement of the airbag toward the outside in the vehicle width direction (outward direction of the vehicle) due to being pushed by the occupant can be suppressed. At this time, it is not necessary to increase the internal pressure of the airbag to increase the bending rigidity with respect to the external bending moment, the internal pressure of the airbag can be kept sufficiently low, and the reaction force against the occupant can also be suppressed to a low level.

1 is a perspective view of the inside of a vehicle body showing a first embodiment of the present invention. It is a system configuration figure of a 1st embodiment. It is a side view which shows the connection structure of the airbag of 1st Embodiment, and a movable roll bar. It is a schematic sectional drawing which shows the positional relationship of the airbag and movable roll bar which were seen from the vehicle front-back direction of 1st Embodiment. It is a side view in the connection state of the connection structure shown in FIG. It is a perspective view which shows the state which the airbag and the movable roll bar act | operated with respect to FIG. It is operation | movement explanatory drawing which shows operation | movement when an airbag and a movable roll bar operate | move in the state which the side window glass of FIG. 4 closed, in order of (a)-(c). It is sectional drawing corresponding to FIG. 4 which shows 2nd Embodiment. It is sectional drawing when the airbag of 2nd Embodiment operates deployment. It is sectional drawing of the vehicle body side part periphery when the vehicle of 2nd Embodiment rolls over. It is sectional drawing corresponding to FIG. 4 which shows 3rd Embodiment. It is sectional drawing of the vehicle body side part periphery when the vehicle of 3rd Embodiment rolls over. The connection structure of the airbag of 4th Embodiment and a movable roll bar is shown, and it is operation | movement explanatory drawing which shows the connection operation | movement in order of (a)-(c). The connection structure of the airbag of the modification of 4th Embodiment and a movable roll bar is shown, and it is operation | movement explanatory drawing which shows the connection operation | movement in order of (a)-(c). It is a side view which shows the connection part of the airbag and movable roll bar which were seen from the inner side of the vehicle body side part of 5th Embodiment. 15A and 15B are enlarged side views corresponding to FIG. 3, in which FIG. 15A shows a state before connection, and FIG. 15B shows a state after connection. It is a side view which shows the modification of 5th Embodiment, (a) shows the state before connection, (b) shows the state after connection, respectively. It is operation | movement explanatory drawing which shows 6th Embodiment and is equivalent to FIG. 15, and shows operation | movement when an airbag and a movable roll bar act | operate in order of (a)-(c). It is sectional drawing seen from the vehicle front-back direction which shows the connection structure of the airbag and movable roll bar of 7th Embodiment, (a) shows the state before connection, (b) shows the state after connection, respectively. It is A arrow line view of Fig.19 (a). (A) is sectional drawing seen from the vehicle body front-back direction which shows the state before the connection of the connection structure of the airbag and movable roll bar of 8th Embodiment, (b) is a B arrow directional view of (a). It is. (A) is sectional drawing seen from the vehicle body front-back direction which shows the state after the connection of the connection structure of the airbag and movable roll bar of 8th Embodiment, (b) is C arrow directional view of (a). It is. It is a system configuration figure of a 9th embodiment. It is a flowchart of a 9th embodiment. It is a flowchart of 10th Embodiment. It is a side view which shows the connection structure of the airbag of 11th Embodiment, and a movable roll bar. It is the rear elevation seen from the vehicles back in the state where the movable roll bar of a 12th embodiment operated.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[First Embodiment]
The vehicle shown in FIG. 1 is a two-door open car having a rear seat (right side in FIG. 1), and expands upward inside the interior material of the door 1 next to the front seat (left side in FIG. 1). The airbag 3 for the front seat to expand | deploy is accommodated, and the airbag 7 for the rear seat which expand | deploys upwards is accommodated inside the interior material of the vehicle body side part 5 beside a rear seat. These airbags 3 and 7 are in a substantially horizontal state in the retracted state shown in FIG. 1 in the vicinity of the upper edges of the left and right doors 1 and the left and right vehicle body side portions 5 next to the rear seat. The door 1 and the vehicle body side portion 5 beside the rear seat constitute a vehicle body side portion.

  Further, a movable roll bar 9 extending in the vertical direction is inclined on the vehicle body side portion 5 in the vicinity of the door 1 side of the rear seat airbag 7 so that the upper end is in front of the vehicle (the left side in FIG. 1) from the lower end. Stored inside the interior material. This movable roll bar 9 accommodates a movable part 13 in a hollow outer cylinder part 11 fixed to the vehicle body side part 5 side so as to protrude and move upward.

  In order to operate each of the airbags 3 and 7 and the movable roll bar 9, in the present embodiment, as shown in the system configuration diagram of FIG. There is provided a rollover behavior sensor 15 as a rollover detecting means for detecting a rollover of the vehicle, such as an angular velocity sensor for detecting the rollover. The rollover behavior sensor 15 is attached to the front and rear ends, the side surface portion, the center portion, and the like of the vehicle body.

  The above-described rollover behavior sensor 15 is connected to a controller 21 which is a control unit that controls the operation of each of the airbags 3 and 7 and the movable roll bar 9, and the controller 21 performs an operation of deploying the airbags 3 and 7, respectively. The expansion ignition devices 23 and 25 for causing the movable roll bar 9 to project and the ignition device 27 for projecting the movable roll bar 9 are connected.

  These igniters 23, 25, 27 are connected to inflators (not shown), and react with the internal explosives by ignition, or release the gas stored in the internal cylinders. The bodies 29 and 31 (see FIG. 6) are inflated and deployed, and the movable portion 13 of the movable roll bar 9 is operated to project.

  The controller 21 processes the voltage value transmitted from the rollover behavior sensor 15 to obtain the acceleration value of the impact and the angular velocity value of the lateral inclination of the vehicle body, and when these exceed a set value, the ignition devices 23, 25, 27 The ignition signal is transmitted to the air bag 3, and the air bags 3, 7 and the movable roll bar 9 are operated as described above.

  As shown in FIG. 3, annular connecting rings 33 and 35 as receiving portions are provided at the upper ends (tips) of the airbags 29 and 31 of the airbags 3 and 7 in the deployed state of FIG. It is attached via attachment portions 37 and 39. The connecting rings 33 and 35 are provided with through holes 33a and 35a, respectively, and are arranged in the almost upper position in the substantially horizontal state so that the through holes 33a and 35a penetrate in the vertical direction, and are arranged immediately above the movable roll bar 9 in close proximity to each other. Yes.

  Further, when the door 1 is opened and closed, the left side seat in FIG. 1 (the seat on the front side in FIG. 1) is avoided in order to prevent the connecting ring 33 on the side of the airbag 3 for the front seat from interfering with the vehicle body side portion 5. ), A slit (notch) 5a through which the connecting ring 33 passes is provided at the rear edge of the door opening 1a (the front edge of the vehicle body side 5 on the door 1 side). ing.

  As shown in FIG. 3, the slit 5a is formed between the two ridge lines L2 and the ridge line L3 of the door opening 1a on the vehicle front side (left side in FIG. 3) from the ridge line L1 corresponding to the rear edge of the door 1. It is provided in the part. The ridge line L3 located behind the ridge line L2 may overlap with the ridge line L1 of the rear edge of the door, and a portion between the ridge line L3 and the ridge line L2 is a vehicle with respect to the outer surface of the vehicle body side portion 5. It is located inside in the width direction.

  Therefore, the connection ring 33 is hidden by the door 1 when viewed from the side of the vehicle, and when the door 1 is closed, the slit 5a is also covered by the door 1, so that appearance can be ensured and passengers can be connected. It can suppress that it interferes with the ring 33 and impairs boarding / alighting property.

  Although not shown, a partition plate that covers the upper and lower sides of the connecting ring 33 and the vehicle rear side in FIG. 3 may be provided on the inner surface of the door 1. Thereby, the deformation | transformation by some interference to the connection ring 33 at the time of door opening can be suppressed. In this case, similarly to the slit 5a for the connecting ring 33, it is necessary to provide a slit through which the partition plate passes on the vehicle body side portion 5 side when the door is opened and closed. Further, when the movable roll bar 9 is operated to protrude, the partition plate is destroyed.

  On the other hand, the protrusion direction front end (upper end) of the movable part 13 of the movable roll bar 9 forms an insertion part 45 having bifurcated locking protrusions 41 and 43 as shown in FIG. The insertion portion 45 includes a recess 47 that is a substantially U-shaped notch between the locking projections 41 and 43, and a pair of leaf springs 49 and 51 as elastic members are provided on the opening side of the recess 47. The above-described connecting rings 33 and 35 constitute a connecting portion.

  Each of the leaf springs 49 and 51 fixes the base end portions 49a and 51a to the side surfaces 47a and 47b of the concave portion 47, and elastically connects the elastic contact portions 49c and 51c extending downward through the upper bent portions 49b and 51b. Is pushing.

  Further, taper surfaces 47c and 47d are formed on the distal end side of the concave portion 47 with respect to the portion where the plate springs 49 and 51 are attached so that the distance between the locking projections 41 and 43 becomes wider toward the distal end side. The tapered surfaces 47c and 47d are formed so as to be continuous with elastic contact portions 49c and 51c extending downward from the bent portions 49b and 51b of the leaf springs 49 and 51, respectively.

  The through-holes 33a and 35a of the connecting rings 33 and 35 are located above the locking protrusions 41 and 43, more precisely, on the extension of the movable roll bar 9 in the inclination direction. Therefore, when the movable roll bar 9 is operated and the movable portion 13 is protruded, the locking projections 41 and 43 enter the through holes 33a and 35a of the coupling rings 33 and 35, as shown in FIG. The connecting rings 33 and 35 enter the bottom side of the recess 47 so as to push the elastic contact portions 49c and 51c.

  At this time, as shown in FIG. 4, the movable roll bar 9 is positioned on the vehicle outer side than the side window glasses 53 and 54 as the window shield panels, while the airbags 3 and 7 are arranged from the side window glasses 53 and 54. Is also located on the vehicle inner side (vehicle compartment 55 side). Here, the side window glass 53 corresponds to the front seat, and the side window glass 54 corresponds to the rear seat.

  In addition, since the side window glass 53 on the front seat side moves up and down in front of the vehicle from the ridge line L2 in FIG. 3 (left side in FIG. 3), the connecting ring 33 is not obstructed by the side window glass 53. It is possible to position the movable roll bar 9 on the outer side of the side window glass 53.

  Further, as shown in FIG. 4, fracture portions 57 and 59 having higher hardness than the side window glass 53 are provided in the vicinity of the base end portions of the attachment portions 37 and 39. The destruction parts 57 and 59 are provided with pointed parts 57a and 59a facing the inner surface of the side window glass 53 that is bent so that the vehicle interior 55 side has a concave curved surface. Note that the sharp portions 57a and 59a are omitted in FIG.

  Next, the operation of the first embodiment will be described. When the controller 21 detects a rollover of the vehicle, first, a signal for projecting the movable portion 13 of the movable roll bar 9 is sent to the ignition device 27. An inflator (not shown) is activated by ignition of the ignition device 27, and based on this, the movable portion 13 of the movable roll bar 9 starts to extend along the straight line P in FIG.

  When the movable portion 13 of the movable roll bar 9 starts to expand, the locking projections 41 and 43 at the tip of the movable portion 13 enter the through holes 33a and 35a of the coupling rings 33 and 35 as shown in FIG. 33 and 35 enter the recess 47 while elastically deforming the leaf springs 49 and 51, and engage with the insertion portion 45. As a result, the airbags 3 and 7 and the movable roll bar 9 are connected.

  In a state where the coupling rings 33 and 35 enter the recessed portion 47, the elastic contact portions 49c and 51c of the leaf springs 49 and 51 are restored and returned to the original pressed state, so that the opening of the recessed portion 47 is originally closed. The connection ring 33, 35 is prevented from being detached from the recess 47.

  At this time, the controller 21 transmits an ignition signal to the ignition devices 23 and 25 of the airbags 3 and 7 almost simultaneously with or slightly behind the transmission of the ignition signal to the ignition device 27 of the movable roll bar 9. 3 and 7 are deployed. As a result, the bag bodies 29 and 31 of the airbags 3 and 7 are also inflated and deployed as the movable portion 13 of the movable roll bar 9 protrudes, and finally the movable portion 13 extends as shown in FIG. Inflated, the expansion of the bags 29 and 31 is also completed.

  When the movable roll bar 9 is operated to protrude, the tip of the movable portion 13 breaks through the outer plate of the vehicle body side portion 5, and when the airbags 3, 7 are deployed, it breaks through the interior material inside the vehicle body.

  The tip of the movable part 13 in the fully extended state is located in front of the vehicle with respect to the position before the extension, and the top ends of the bag bodies 29 and 31 are supported by the tip of the movable part 13. . On the other hand, the lower ends of the bag bodies 29 and 31 are supported by the storage portions 61 and 63 for storing the bag bodies 29 and 31 before unfolding. The unfolded bag bodies 29 and 31 are arranged in the vehicle width direction. As seen from the figure, it is almost triangular.

  In the state of FIG. 6, the bag body 29 of the front seat airbag 3 covers the side of a passenger (not shown) seated in the front seat, while the bag body 31 of the rear seat airbag 9 sits in the rear seat. The side of the occupant not shown is covered.

  In this way, the airbags 3 and 7 are supported by both the lower and upper parts of the vehicle body when the bag bodies 29 and 31 are deployed. Movement to the outside in the vehicle width direction (outward direction of the vehicle) due to being pushed can be suppressed, and an occupant can be efficiently protected. At this time, there is no need to increase the internal pressure of the airbags 3 and 7 to increase the bending rigidity with respect to the external bending moment. Therefore, the internal pressure of the airbags 3 and 7 can be kept sufficiently low, and the reaction force against the occupant can be kept small. Therefore, it can be set as a reliable occupant protection device.

  Moreover, in this embodiment, a connection part is provided in the airbag 3 and 7 side, the connection rings 33 and 35 provided with the through-holes 33a and 35a, and the movable roll bar 9 side are provided, and the through-holes 33a and 35a. And an insertion portion 45 that enters and locks. For this reason, each airbag 3 and 7 and the movable roll bar 9 can be easily connected by the insertion part 45 entering the through holes 33a and 35a of the connection rings 33 and 35.

  In the present embodiment, the connecting rings 33 and 35 are provided so that the through holes 33 a and 35 a penetrate in the vertical direction, and the through holes 33 a and 35 a protrude from the movable roll bar 9 having the insertion portion 45. Located in the direction of movement. For this reason, when the movable roll bar 9 protrudes, the insertion portion 45 easily enters the through holes 33a and 35a.

  Moreover, in this embodiment, the insertion part 45 is provided with the substantially U-shaped recessed part 47 which has an opening part in the side into which the connection rings 33 and 35 enter. For this reason, the connection rings 33 and 35 are securely held by the recesses 47 so that the airbags 3 and 7 and the movable roll bar 9 can be connected.

  Further, in the present embodiment, the insertion portion 45 is provided with leaf springs 49 and 51 that press the opening of the recess 47 in the closing direction, and the leaf springs 49 and 51 have the connecting rings 33 and 35 in the recess 47. When it enters, it elastically deforms to open the opening. For this reason, when opening and closing the opening of the recess 47, there is no need to provide a driving means, and the connection rings 33 and 35 can be inserted into the recess 47 with a simple configuration.

  Moreover, in this embodiment, while providing the airbag 3 in the door 1 side, the movable roll bar 9 is provided in the vehicle body side part 5 by the side of the vehicle body located in the vehicle body rear side of the door 1, and at least the door 1 is opened and closed. Sometimes, since the connection state of the connecting portion is released, the door 1 can be easily opened and closed, and the passenger can get on and off.

  Further, in the present embodiment, the connecting portion in a state in which the movable roll bar 9 protrudes upward and the tip thereof is connected to the vicinity of the upper ends of the bag bodies 29 and 31 where the airbags 3 and 7 are deployed is developed. It is located on the outer side in the vehicle width direction than the actuated bags 29 and 31. Therefore, when the door 1 or the vehicle body side portion 5 approaches the ground when the vehicle rolls over, the airbags 3 and 7 are movable roll bars 9 near the upper ends of the bag bodies 29 and 31 if the ground is flat. The periphery of the connecting portion is grounded to the ground, and the grounding of the bag bodies 29 and 31 themselves to the ground can be suppressed.

  Thereby, even when the occupant interferes with the airbags 3 and 7, even if the bag bodies 29 and 31 are crushed by the interference force from the occupant due to the low internal pressure of the airbags 3 and 7, they interfere with the occupant. It is possible to suppress the grounding of the airbags 3 and 7 and to reduce the impact of the occupant from the ground restrained by the tension of the airbags 3 and 7.

  Further, in the present embodiment, the airbag 3 is provided on the door 1 side, while the movable roll bar 9 is provided on the vehicle body side portion 5 on the vehicle body main body located on the vehicle body rear side of the door 1 so as to protrude and move upward. The distal end of the movable roll bar 9 connected to the vicinity of the upper ends of the bags 29 and 31 in which the airbags 3 and 7 are deployed is positioned in front of the vehicle body relative to the front end of the retracted state before protruding upward. ing.

  For this reason, in a two-door vehicle having a rear seat, for example, the front and rear length of the door 1 is long, and the connecting portion to the airbags 3 and 7 in the retracted state of the movable roll bar 9 is more rearward than the front seat occupant. In such a case, since the connecting portion of the tip of the movable roll bar 9 after the projection operation is more forward, the area for protecting the front seat occupant by the bag body 29 of the inflated airbag 3 is increased. It can be secured.

  As shown in FIG. 7, when the movable roll bar 9 and the airbags 3 and 7 are operated, if the side window glass 53 or 54 is closed, the movable roll bar 9 is broken along with the deployment operation. The part 57 or 59 collides with the side window glass 53 or 54 and is crushed and broken. Thereby, the resistance force with respect to the action | operation which acts on the bag bodies 29 and 31 of the airbags 3 and 7 and the movable part 13 of the movable roll bar 9 becomes small, and the side window glass 53 or 54 is in a closed state without being broken. The operating time can be shortened compared to the above.

  Further, in this embodiment, the strength of the outer bending moment in the vehicle width direction of the member that holds the window shield panels 53 and 54 in the closed state on the door 1 or the vehicle body side 5 is expanded when the airbags 3 and 7 are deployed. The bag bodies 29 and 32 to be closed are made higher than the external bending moment of the window shield panels 53 and 54 due to the unfolding force acting on the closed window shield panels 53 and 54.

  Thereby, when the breaking part 57 or 59 collides with the side window glass 53 or 54, the side window glass 53 or 54 is displaced outside in the vehicle width direction without breaking, and escapes in a direction away from the breaking parts 57 and 59. The behavior will be suppressed. As a result, when the breaking portion 57 or 59 interferes (collises) with the side window glass 53 or 54, the side window glass 53 or 54 can be crushed reliably and quickly.

  Further, as shown in FIG. 7C, when the operation of the airbags 3 and 7 and the movable roll bar 9 is completed, the bag 29 in the portion between the upper and lower ends of the airbags 3 and 7 held by the vehicle. , 31 are in contact with a curved surface that protrudes outward from the outer surface of the door 1 (or the vehicle body side portion 5) from the tip of the movable portion 13 of the movable roll bar 9 when viewed from the front-rear direction of the vehicle. It is located on the inner side in the vehicle width direction than the extending straight line F.

  Thereby, when the surroundings of the side window glasses 53 and 54 are in contact with the ground due to the rollover of the vehicle, the position of the ground is on the straight line F described above, and the bag bodies 29 and 31 of the airbags 3 and 7 are directed upward from the ground. It will be in a floating state and away from the ground. As a result, even when the airbags 3 and 7 whose internal pressure is set low are pushed and crushed by the occupant when the vehicle rolls over, the airbags 3 and 7 are prevented from contacting the ground by the tension. , Occupants can be reliably protected.

  Further, in the present embodiment, even when the movable roll bar 9 is damaged by the impact of the vehicle and becomes inoperable, that is, even when the movable roll bar 9 does not expand during the vehicle rollover, the connecting ring Since 33 and 35 are located above the movable roll bar 9, the operation of deploying the airbags 3 and 7 can be performed without any trouble.

[Second Embodiment]
As shown in FIG. 8, in the second embodiment, the outer side in the vehicle width direction in the storage portions 61A and 63A of the bag bodies 29 and 31 of the airbags 3A and 7A for the front seat and the rear seat (in FIG. 8). The right side) stores the bag bodies 65 and 67 of the airbags 3A and 7A that are deployed outside the bag bodies 29 and 31 in the vehicle width direction. Here, the bag bodies 65 and 67 are sub-chamber types that communicate with the inside of the bag bodies 29 and 31, and are integrated with the bag bodies 29 and 31. That is, a gas generated by the operation of an inflator (not shown) is supplied to both the bag bodies 29 and 31 and the bag bodies 65 and 67 and developed.

  In this case, when the airbags 3A, 7A are deployed, as shown in FIG. 9, the deployed sub-chamber side bags 65, 67 are similarly deployed with the deployed bags 29 or 31 and the door. 1 or the interior of the vehicle body side portion 5 is sandwiched between the bag bodies 29 and 31 against the vehicle interior 55 side. That is, the bag bodies 65 and 67 are pressing airbags that press the bag bodies 29 and 31 toward the passenger compartment 55 and constitute pressing bodies.

  Thereby, the bag bodies 29 and 31 will be located in the vehicle interior 55 side rather than the expanded state in the said 1st Embodiment, and the space | interval with the above-mentioned straight line F becomes large. Therefore, as shown in FIG. 10, when the surroundings of the side window glasses 53 and 54 are grounded to the ground due to the rollover of the vehicle, the distance between the bag bodies 29 and 31 and the ground is compared to the case without the bag bodies 65 and 67. Become bigger. As a result, even if the airbags 3A and 7A, whose internal pressures are set low, are more strongly pushed and crushed by the occupant (head) 69, the airbags 3A and 7A are generated in the bag bodies 29 and 31. The contact with the ground is suppressed by the tension T, and the occupant 69 can be more reliably protected.

  Further, since the tension T generated in the bag bodies 29, 31 is compressed by the interference force between the occupant 69 and the bag bodies 29, 31, the interference between the occupant 69 and the airbag bag bodies 29, 31 occurs. The power is reduced. Thereby, the impact force to the passenger | crew 69 restrained by the bag bodies 29 and 31 from the bag bodies 29 and 31 becomes small, and the protection function to the passenger | crew 69 of the bag bodies 29 and 31 improves.

  Further, due to the expansion and expansion of the bag bodies 65 and 67, the tension T acting on the bag bodies 29 and 31 becomes larger than when the bag bodies 65 and 67 are not provided. As a result, the movable portion 13 of the movable roll bar 9 is bent so that the tip is inward in the vehicle width direction due to a grounding load or the like due to rollover, so that the interval between the storage portions 61A and 63A and the tip of the movable portion 13 is bent. Even if it becomes shorter than the case where it does not exist, the tension T of the bag bodies 29 and 31 can be kept high. As a result, since the space between the bag bodies 29 and 31 and the ground can be maintained, the protection function for the occupant 69 is further improved.

  Moreover, since the bag bodies 65 and 67 which are pressing bodies are normally stored in the storage parts 61A and 63A, appearance quality can be maintained.

  In the above embodiment, the bag bodies 65 and 67 are sub-chamber types communicating with the inside of the bag bodies 29 and 31, but an ignition device such as an inflator other than the bag bodies 29 and 31 is provided to You may make it expand | deploy separately from the bodies 29 and 31. FIG.

  By setting the bag bodies 65 and 67 to the sub-chamber type communicating with the inside of the bag bodies 29 and 31, the storage portions 61 </ b> A and 63 </ b> A common to the inside of the door 1 or the vehicle body side portion 5 and the bag bodies 29 and 31 are set. This eliminates the need to separately set a storage unit dedicated to the bags 65 and 67. As a result, the volume required to store the airbag 3A or 7A in the door 1 or the vehicle body side portion 5 is small, and the thickness of the door 1 or the vehicle body side portion 5 is different from that of the bag bodies 29 and 31. Compared with the case where the ignition device is provided, the thickness can be reduced and the weight of the vehicle body can be reduced.

[Third Embodiment]
In the third embodiment, as shown in FIGS. 11 and 12, instead of the pressing airbags (bag bodies 65 and 67) in the second embodiment, the protruding state of FIG. The pressing member 71 that is displaced to the upper side of the door 1 or the vehicle body side portion 5 is provided as a protruding member that is stored close to the upper portion of the storage portion 61 or 63 inside the vehicle body side portion 5. As shown in FIGS. 11 and 12, the pressing member 71 has a substantially cubic shape when viewed from the vehicle front-rear direction, and has a vehicle front-rear direction length substantially corresponding to the vehicle front-rear direction length of the deployed bag bodies 29, 31. I have.

  Such a pressing member 71 protrudes toward the vehicle interior 55 as shown in FIG. 12 when the bag bodies 29 and 31 of the airbags 3 and 7 are deployed, or immediately after the deployment, in the second embodiment. In the same manner as the bag bodies 65 and 67, the unfolded bag bodies 29 and 31 are pressed toward the passenger compartment 55, and the same effects as those of the second embodiment can be obtained.

  In this case, since the pressing member 71 is formed of a rigid body, the pressing force against the bag bodies 29 and 31 can be more reliably ensured, and the tension T acting on the bag bodies 29 and 31 can be more reliably maintained. .

  In addition, what is necessary is just to perform the protrusion operation | movement of the above-mentioned pressing member 71 by the gas pressure which generate | occur | produces with the same ignition device as an airbag.

[Fourth Embodiment]
As shown in FIG. 13, the fourth embodiment replaces the leaf springs 49 and 51 in the first embodiment shown in FIG. 3 with a pair of opening and closing bodies 73 and 75 that open and close the opening of the recess 47. And pressing springs 77 and 79 as elastic means for pressing the opening and closing bodies 73 and 75 in the closing direction. Other configurations are the same as those of the first embodiment.

  The opening / closing bodies 73 and 75 are rotatably supported by the locking protrusions 41 and 43 of the movable body 13 via rotation support pins 81 and 83, while the pressing springs 77 and 79 are opened and closed with the locking protrusions 41 and 43. It is provided between the bodies 73 and 75. Then, by providing stoppers 85 and 87 on the locking projections 41 and 43 for restricting rotation of the opening and closing bodies 73 and 75 by the pressing springs 77 and 79 on the locking projections 41 and 43, the opening and closing bodies 73 and 75 are closed as shown in FIG. State is maintained. That is, the opening / closing bodies 73 and 75 are provided with stoppers 85 and 87 which are closed by the elastic means being pressed in the direction in which the tip side moves from the bottom side of the recess 47 to the opening side.

  Therefore, when the movable part 13 of the movable roll bar 9 is projected and operated, the connecting rings 33 and 35 push the opening / closing bodies 73 and 75 against the pressing springs 77 and 79 as shown in FIG. As shown in FIG. 13 (c), it enters the recess 47. In a state in which the connection rings 33 and 35 enter the recess 47, the open / close bodies 73 and 75 return to a state in which the opening of the recess 47 is closed by the pressing springs 77 and 79.

  Thereby, the opening / closing of the opening is a combination of the opening / closing bodies 73 and 75 and the pressing springs 77 and 79 as compared with the first embodiment in which only the leaf springs 49 and 51 are provided as a mechanism for opening and closing the opening of the recess 47. As a result, the opening / closing operation can be performed more smoothly.

  FIG. 14 is a modification of the fourth embodiment shown in FIG. In this modification, a recess 47A provided at the tip of the movable portion 13 of the movable roll bar 9 opens downward, and the opening / closing bodies 73 and 75 and the pressing spring 77 are the same as those in FIG. 79 are provided. However, the opening and closing bodies 73 and 75 here are upside down with respect to FIG. 13, and the pressing springs 77 and 79 are also arranged below the opening and closing bodies 73 and 75.

  The recess 47A described above includes a notch 89 whose lower opening opens to the outside in the left direction in FIG. Accordingly, the distal end (upper end) of the movable portion 13 has a locking portion 13a extending continuously upward from the lower side, a bent portion 13b bent at a right angle from the locking portion 13a toward the front of the vehicle, and a bent portion. A locking portion 13c extending downward from 13b in parallel with the locking portion 13a.

  And the connecting ring 33 by the side of the airbag 3 is arrange | positioned in the position corresponding to the above-mentioned notch part 89. FIG. Further, the connecting ring 35 on the airbag 7 side may be disposed in the vicinity of the opening of the recess 47 </ b> A in a state of being engaged with the engaging portion 13 a below the opening / closing body 75.

  In the modified example of FIG. 14 described above, when the airbags 3 and 7 are deployed and the bag bodies 29 and 31 are inflated and deployed, the connecting rings 33 and 35 move upward to open the opening and closing bodies 73 and 75. Into the recess 47A. Therefore, in this case, it is necessary to control by the controller 21 shown in FIG. 2 so that the deployment operation of the airbags 3 and 7 is performed before the projecting operation of the movable roll bar 9, and the recesses 47 </ b> A The connected state of the connecting rings 33 and 35 entering the movable roll bar 9 becomes more reliable.

  Further, the connecting ring 33 on the airbag 3 side is set to have a vertical positional relationship with the notch 89 so that the door 1 can pass through the notch 89 in the horizontal direction when the door 1 is opened and closed.

[Fifth Embodiment]
In the fifth embodiment, as shown in FIGS. 15 and 16, recesses 47 </ b> B <b> 1 and 47 </ b> B <b> 2 are provided on both sides in the vehicle front-rear direction (the left-right direction in FIGS. 15 and 16) near the tip of the movable portion 13 of the movable roll bar 9. Respectively. The recesses 47B1 and 47B2 are opened to the outside by cutout portions 91 and 93 on the vehicle front side and the rear side, respectively, and connecting rings 33 and 35 are inserted from the cutout portions 91 and 93, respectively.

  Therefore, when the door 1 is opened and closed, the connecting ring 33 moves in the horizontal direction with respect to the notch 91 and enters and exits the recess 47B1.

  Further, leaf springs 95 and 97 as elastic members are respectively provided in the openings of the recesses 47B1 and 47B2, and one end of each of the leaf springs 95 and 97 is located on the side of the notches 91 and 93 of the recesses 47B1 and 47B2. It connects with the upper end of the side walls 99 and 101, and makes the other end press against the side walls 103 and 105 on the opposite side upward.

  Therefore, when the movable part 13 of the movable roll bar 9 is projected and operated, the connecting rings 33 and 35 push down the leaf springs 95 and 97 to enter the recesses 47B1 and 47B2 as shown in FIG. It will be. When the connection rings 33 and 35 enter the recesses 47B1 and 47B2, the leaf springs 95 and 97 are restored and the openings of the recesses 47B1 and 47B2 are closed.

  Also in this embodiment, as in the first embodiment, when opening and closing the openings of the recesses 47B1 and 47B2, it is not necessary to provide a driving means, and the connection rings 33 and 35 can be connected to the recesses 47B1 and 47B2 with a simple configuration. Can get in.

  FIG. 17 shows a modification of the fifth embodiment shown in FIGS. In this modification, the concave portions 47C1 and 47C2 provided at the tip of the movable portion 13 of the movable roll bar 9 are opened downward, and plate springs 95 and 97 similar to those in FIG. ing. However, the plate springs 95 and 97 here are upside down with respect to FIG.

  Therefore, in this modified example, since the connecting rings 33 and 35 are located below the recesses 47C1 and 47C2, the bag body 29 is used when the airbags 3 and 7 are deployed as in the modified example of FIG. When the connecting rings 33 and 35 are moved upward when the first and second members 31 are expanded and deployed, the leaf springs 95 and 97 are elastically deformed and enter the recesses 47C1 and 47C2. Therefore, also in this case, it is necessary to control the controller 21 shown in FIG. 2 so that the airbag 3 and 7 are deployed before the movable roll bar 9 is projected. Moreover, the connection state with respect to the movable roll bar 9 of the connection rings 33 and 35 that have entered the recesses 47C1 and 47C2 becomes more reliable.

[Sixth Embodiment]
As shown in FIG. 18, the sixth embodiment includes substantially U-shaped recesses 47D1 and 47D2 having openings in the longitudinal direction of the vehicle body in the vicinity of the front end of the movable part 13 of the movable roll bar 9, and the recess 47D1. , 47D2 are provided with pistons 107 and 109 as movable bodies that move back and forth so that the opening can be opened and closed. The pistons 107 and 109 are actuated by electromagnetic solenoids or explosives that are actuated by signals from the controller 21, and move along the above-described inclination direction of the movable roll bar 9.

  As shown in FIG. 18A, the above-described pistons 107 and 109 are normally in the retracted position and open the openings of the recesses 47D1 and 47D2. At this time, the connecting ring 33 of the airbags 3 and 7 is opened. , 35 enters the recesses 47D1 and 47D2 in the same manner as in FIG. That is, the through holes 33a and 35a of the connection rings 33 and 35 are positioned in front of the pistons 107 and 109 in the advancing movement direction.

  Therefore, when the door 1 is opened and closed, the piston 107 is set in the retracted position, so that the connecting ring 33 moves in and out in the horizontal direction with respect to the recess 47D1, and protrudes and moves with the inflated and deployed airbags 3 and 7. Even if it is a structure which connects the movable roll bar 9, the door 1 can be opened and closed, and the passengers can be secured.

  Then, when the rollover of the vehicle is detected and the movable portion 13 of the movable roll bar 9 is operated to project, the pistons 107 and 109 are first moved forward by a signal from the controller 21 as shown in FIG. The through-holes 33a and 35a of the connection rings 33 and 35 are entered, and the openings of the recesses 47D1 and 47D2 are closed. As a result, the tip of the movable portion 13 of the movable roll bar 9 and the airbags 3 and 7 are connected.

  In this connected state, as shown in FIG. 18 (c), the movable portion 13 is operated to project and the airbags 3 and 7 are deployed according to a signal from the controller 21.

  Thus, in this embodiment, since the pistons 107 and 109 enter the through holes 33a and 35a of the connection rings 33 and 35, the movable roll bar 9 and the airbags 3 and 7 are connected. The connection state can be made strong, and the occupant protection when the vehicle rolls over can be made more reliable.

[Seventh Embodiment]
In the seventh embodiment, as shown in FIGS. 19 and 20, the through holes 33a and 35a of the connecting rings 33 and 35 of the airbags 3 and 7 are penetrated in the vehicle width direction corresponding to the left-right direction in FIG. Is provided. Correspondingly, in the vicinity of the distal end of the movable portion 13 of the movable roll bar 9, a U-shape having an opening on the outer side in the vehicle width direction (the opening direction of the door 1) on the side into which the coupling rings 33 and 35 enter. Recesses 47E1 and 47E2 are provided.

  The recesses 47E1 and 47E2 are formed by arranging the notch recesses 111 and 113 side by side in the vertical direction, and by providing locking pins 115 and 117 projecting outward in the vehicle width direction at the center of the notch recesses 111 and 113. Yes. The locking pins 115 and 117 have shaft portions 115a and 117a on the base end side, and head portions 115b and 117b on the distal end side having a larger diameter than the shaft portions 115a and 117a. At this time, the upper side in FIG. 19 which is a position corresponding to the protruding movement direction of the movable roll bar 9 of the shaft portions 115a and 117a becomes the above-described concave portions 47E1 and 47E2.

  Then, leaf springs 119, 121 and 123, 125 as elastic members are arranged in openings located above the recesses 47E1 and 47E2, respectively. Here, the leaf spring 119 and the leaf spring 123 are attached to the heads 115b and 117b, respectively, while the leaf spring 121 and the leaf spring 125 are attached to the bottoms of the notches 111 and 113, respectively. . Further, the tips of the leaf spring 119 and the leaf spring 121 are bent downward so as to be in contact with each other or disposed at close positions, and the tips of the leaf spring 123 and the leaf spring 125 are also bent downward to be in contact with each other. Or place them in close proximity.

  Here, the inner diameters of the through-holes 33a, 35a of the connection rings 33, 35 are larger than the outer diameters of the heads 115b, 117b. In this state, the connection rings 33, 35 are normally connected to the through-holes 33a. , 35a and the locking pins 115, 117 are inserted into the notch recesses 111, 113. However, this positional relationship corresponds to the connection ring 33 when the door 1 is closed. The connecting ring 33 enters and exits the cutout recess 111 when the door 1 is opened and closed.

  When the coupling rings 33 and 35 are located in the notch recesses 111 and 113, the centers of the locking pins 115 and 117 substantially coincide with the centers of the through holes 33a and 35a, and the shaft portions of the locking pins 115 and 117 are connected. 115a and 117a.

  In the seventh embodiment, when the movable portion 13 of the movable roll bar 9 is projected and operated, the connection rings 33 and 35 are leaf springs as in the fifth embodiment shown in FIGS. By pushing down 119, 121 and 123, 125, they enter the recesses 47E1, 47E2 as shown in FIG. In a state where the connection rings 33 and 35 enter the recesses 47E1 and 47E2, the leaf springs 119, 121 and 123 and 125 are restored, and the openings of the recesses 47E1 and 47E2 are closed.

  Therefore, in this embodiment as well, similarly to the first embodiment, when opening and closing the openings of the recesses 47E1 and 47E2, it is not necessary to provide a driving means, and the connection rings 33 and 35 can be formed in the recess 47E1 with a simple configuration. , 47E2.

  In the present embodiment, the leaf springs 119, 121 and 123, 125 are arranged at the lower part instead of being arranged at the upper part of the shaft parts 115a, 117a, as in the example shown in FIGS. When the airbag bodies 3 and 7 are deployed, the connecting rings 33 and 35 move upward when the bag bodies 29 and 31 are inflated and deployed, so that the leaf springs 119, 121 and 123, 125 are elastically deformed to form recesses. It goes into 47E1, 47E2. Therefore, also in this case, it is necessary to control the controller 21 shown in FIG. 2 so that the airbag 3 and 7 are deployed before the movable roll bar 9 is projected. However, the recesses 47E1 and 47E2 in this example are formed in the lower part of the shafts 115a and 117a, contrary to FIG.

[Eighth Embodiment]
As shown in FIGS. 21 and 22, the eighth embodiment is shown in FIG. 18 instead of the leaf springs 119, 121 and 123, 125 of the seventh embodiment shown in FIGS. Further, pistons 127 and 129 as movable bodies similar to those in the sixth embodiment are used. The pistons 127 and 129 are normally housed in the heads 115b and 117b of the locking pins 115 and 117 as shown in FIG. 21, and protrude upward from the housing state as shown in FIG. 22 during operation. To do.

  Therefore, when the rollover of the vehicle is detected and the movable portion 13 of the movable roll bar 9 is protruded, the pistons 127 and 129 are first moved forward by a signal from the controller 21, and as shown in FIG. , 47E2 are closed. As a result, the tip of the movable portion 13 of the movable roll bar 9 and the airbags 3 and 7 are connected.

  In this connected state, in accordance with a signal from the controller 21, the movable portion 13 is protruded and the airbags 3 and 7 are deployed as in the case of FIG.

  Thus, in this embodiment, the pistons 127 and 129 move forward to close the openings of the recesses 47E1 and 47E2, thereby connecting the movable roll bar 9 and the airbags 3 and 7. Therefore, this connection state can be strengthened, and occupant protection when the vehicle rolls over can be made more reliable.

[Ninth Embodiment]
In the ninth embodiment, as shown in FIG. 23, the system configuration of the ninth embodiment is different from that of the first embodiment in FIG. 2 in that the vehicle collides with a laser beam that detects a colliding object as a colliding object. A collision pre-detection sensor 17 as a pre-collision detection means for detecting in advance and a collision detection sensor 19 as a collision detection means for detecting a vehicle collision including a load sensor are additionally provided. Similar to the rollover behavior sensor 15, these sensors 17 and 19 are attached to the front and rear ends, the side surface, the center, and the like of the vehicle body while being connected to the controller 21.

  In this embodiment, since the movable roll bar 9 is disposed on the side surface of the vehicle body, it corresponds to the possibility that the movable roll bar 9 may be damaged and cannot be deployed if the vehicle side surface portion is greatly deformed by a side collision. .

  That is, if the movable roll bar 9 is deployed before the collision by side detection in advance, or if the movable roll bar 9 is deployed after the side collision, at least the movable roll bar 9 on the collision side is not deployed. Therefore, connection between the movable roll bar 9 and the airbags 3 and 7 due to the development of the movable portion 13 of the movable roll bar 9 on the collision side is not caused.

  Thus, the deployment of the airbags 3 and 7 is not hindered by the movable roll bar 9 damaged by the side collision, and the passenger restraining force by the airbags 3 and 7 in the deployed operation state is secured.

  Next, the control operation of the controller 21 in the system configuration of FIG. 23 will be described based on the flowchart of FIG. First, the sensors 15, 17 and 19 are initialized (step S1), and it is determined whether or not a collision is detected in advance by the collision pre-detection sensor 17 (step S2). It is determined whether the bar 9 can be protruded before the collision (step S3).

  The case where “the movable roll bar 9 can protrude before the collision” means that when the movable operation time of the movable roll bar 9 is Tr, and the time from the collision prior detection to the collision is TTC, Tr> This corresponds to when the TTC relationship is established. The time TTC from the prior detection of the collision to the collision is measured based on the relative speed with the collision object at the time when the collision is detected in advance.

  If the movable roll bar 9 can be protruded before the collision, the ignition device 27 of the movable roll bar 9 is ignited to operate the movable roll bar 9 before the collision (step S4). The ignition devices 23 and 25 of the bags 3 and 7 are also ignited, and the airbags 3 and 7 are deployed (step S5). As a result, even if the vehicle rolls over after the collision, the state shown in FIG. 6 is obtained and the occupant is protected.

  On the other hand, in step S3, when the movable roll bar 9 cannot be projected before the collision, that is, when the movable roll bar 9 collides with the side before the completion of the projection operation, the movable roll bar 9 is projected before the collision. Without activating, the ignition devices 23 and 25 of the airbags 3 and 7 are ignited and only the airbags 3 and 7 are deployed (step S5). Thereby, it is possible to cope with a case where the movable roll bar 9 is damaged due to a side collision and cannot be deployed.

  If the collision is not detected in advance in step S2, it is determined whether or not the collision is detected by the collision detection sensor 19 (step S6). If no collision is detected, the rollover behavior sensor 15 detects the collision. It is determined whether or not a rollover is detected (step S7).

  If rollover is detected here, the ignition device 27 of the movable roll bar 9 is ignited in the same manner as described above to cause the movable roll bar 9 to project before the collision (step S4). The ignition devices 23 and 25 are also ignited to deploy the airbags 3 and 7 (step S5).

  When a collision is detected in step S6, if the movable roll bar 9 is on the collision surface side (step S8), the movable roll bar 9 on the collision side is not protruded and the airbag is operated. Only unfolding operation of 3 and 7 is carried out (Step S5). On the other hand, for the movable roll bar 9 on the non-collision surface side, the movable roll bar 9 is operated to project (step S4), and only the airbags 3 and 7 are deployed (step S5).

  As a result, it is possible to cope with a case where the movable roll bar 9 is damaged due to a side collision and cannot be deployed, and at the same time, the movable roll bar 9 is operated to protrude from the side of the vehicle body opposite to the collision side. It connects with the front-end | tip of the airbag 3 and 7 expand | deployed like FIG. 6, and a passenger | crew is protected.

  If the window shield panels 53 and 54 are closed before the movable roll bar 9 is protruded in step S4, the window shield panels 53 and 54 are opened when a collision is detected in advance in step S2, for example. It may be.

  As a result, when the airbags 3, 7 and the movable roll bar 9 are operated while maintaining their connection, the window shield panel 53 that hinders the operation is out of the movement locus at the time of activation. It is possible to reduce the time required for the operation due to the decrease in the resistance force to the time compared to when the window shield panel 53 is closed.

  The control operation shown in FIG. 24 can be applied not only to the configuration of the first embodiment of FIG. 1 but also to the fourth embodiment of FIG. 13 and the fifth embodiment of FIG.

[Tenth embodiment]
The tenth embodiment is shown in the flowchart of FIG. This embodiment corresponds to one using pistons 107 and 109 and pistons 127 and 129 as movable bodies, as in the sixth embodiment in FIG. 18 and the eighth embodiment in FIG.

  That is, with respect to the flowchart of FIG. 24 according to the ninth embodiment, after the initialization of the sensors 15, 17 and 19 (step S1), the connection state of the movable roll bar 9 and the airbags 3 and 7 is confirmed. Therefore, a determination is made as to whether or not the pistons 107 and 109 or the pistons 127 and 129 have opened the recesses 47D1 and 47D2 or the openings of the recesses 47E1 and 47E2 as the retracted positions (step S10).

  If the piston 107, 109 or piston 127, 129 is in the forward position and the opening is closed in step S10, the concave portion 47D1, 47D2 or the concave portion is made with the piston 107, 109 or piston 127, 129 in the backward position. The openings of 47E1 and 47E2 are opened (step S11).

  Further, with respect to the flowchart of FIG. 24, before the movable roll bar 9 is operated to protrude, the movable roll bar 9 and the airbags 3 and 7 are connected to each other with the pistons 107 and 109 or the pistons 127 and 129 in the forward positions. The operation | movement (step S20) to add is added.

  For this reason, in the present embodiment, when the airbags 3 and 7 are deployed and operated, but the movable roll bar 9 is damaged due to a side collision and becomes inoperable and does not protrude, the pistons 107 and 109 or the piston 127 and The 129 remains in the retracted position without moving forward, and the connection between the vicinity of the upper ends of the bag bodies 29 and 31 of the airbags 3 and 7 and the vicinity of the upper end of the movable roll bar 9 is released.

  For this reason, even when the movable roll bar 9 is damaged due to a side collision and the protruding operation becomes impossible, the airbags 3 and 7 are deployed, so that the occupant can be protected.

  Other operations are the same as those of the ninth embodiment shown in FIG. Accordingly, in the present embodiment as well, as in the ninth embodiment, it is possible to cope with a case where the movable roll bar 9 is damaged due to a side collision and becomes impossible to project, and at the same time, the vehicle body on the opposite side to the collision side About a side part, it connects with the front-end | tip of the airbags 3 and 7 which carry out the movable operation of the movable roll bar 9, and protects a passenger | crew.

[Eleventh embodiment]
The eleventh embodiment is different from the first embodiment shown in FIG. 3 in that, as shown in FIG. 26, the airbag 7 on the rear seat side is connected at the leading end located at the upper end when the airbag 7 is inflated and deployed. The ring 131 is in a state of being always connected to the insertion portion 45 provided at the distal end of the movable portion 13 of the movable roll bar 9 via the connector 133.

  In addition, although one leaf spring 135 is provided instead of the pair of leaf springs 49 and 51 in FIG. 3, the pair of leaf springs 49 and 51 in FIG. 3 may be used. Other configurations are the same as those of the first embodiment.

  Thus, in the present embodiment, the rear-seat-side airbag 7 provided on the vehicle body side portion 5 does not involve opening and closing of the door 1 unlike the front-seat-side airbag 3. It becomes possible to always connect to the bar 9, the connection state can be made stronger, and the structure can be simplified.

[Twelfth embodiment]
As shown in FIG. 27, the twelfth embodiment is a spatula-like shape that extends upward at the tip of the outer cylinder portion 11 of the movable roll bar 9 and bends in a curved shape toward the inner side in the vehicle width direction. A deformation inhibiting member 137 is provided. In addition, in FIG. 27, although the state after the protrusion action | operation of the movable roll bar 9 is shown, the airbags 3 and 7 after deployment are omitted.

  When the movable part 13 of the movable roll bar 9 protrudes and the vehicle rolls over as shown in FIG. 10, the deformation suppressing member 137 can suppress bending deformation of the movable part 13 toward the passenger compartment. As a result, the distance between the deployed airbags 3 and 7 and the ground can be secured to protect the occupant.

  In addition, although the above-mentioned deformation | transformation suppression member 137 is integrally provided in the outer cylinder part 11, you may provide in the vehicle body side part 5 side.

1 Door (vehicle side)
3, 3A Front seat side airbag 5 Car body side portion 7, 7A Rear seat side airbag 9 Movable roll bar 15 Rollover behavior sensor (rollover detection means)
17 Pre-collision detection sensor (pre-collision detection means)
19 Collision detection sensor (collision detection means)
29,31 Airbag bag body 33,35 Airbag connecting ring (connecting portion, receiving portion)
33a, 35a Connection ring through-hole 45 Insertion part of movable roll bar (connection part)
47, 47A, 47B1, 47B2, 47C1, 47C2, 47D1, 47D2, 47E1, 47E2 Recesses 49, 51, 95, 97, 119, 121, 123, 125 Leaf spring (elastic member)
53, 54 Window shield panel 55 Car compartment 57, 59 Destruction part 65, 67 Air bag pressing bag (pressing air bag, pressing body)
73,75 Opening and closing body 77,79 Pressing spring (elastic means)
85, 87 Stopper 107, 109, 127, 129 Piston (movable body)
115,117 Locking pins 115a, 117a Locking pin shaft portions 115b, 117b Locking pin heads 137 Deformation restraining member F From the connecting portion, it comes into contact with a curved surface that protrudes outside the outer surface of the vehicle body side portion. Straight line

Claims (34)

  An occupant protection device having an airbag that deploys and operates upward from a vehicle interior side of a vehicle body side portion, and a movable roll bar that projects and operates upward from the vehicle body side portion. When the movable roll bar protrudes upward between the front end in the protruding direction of the airbag and the vicinity of the upper end of the bag body when the airbag is deployed, the front end of the movable roll bar is An occupant protection device characterized in that a connecting portion is provided in the vicinity of the upper end of the bag body before deployment.   2. The occupant protection device according to claim 1, wherein the connecting portion is provided on the airbag side and includes a through hole, and is provided on the movable roll bar side and enters the through hole of the receiving portion. An occupant protection device comprising: an insertion portion coupled with the occupant.   3. The occupant protection device according to claim 2, wherein the receiving portion is provided so that the through-hole penetrates in a vertical direction, and the through-hole is in the protruding movement direction of the movable roll bar provided with the insertion portion. An occupant protection device, characterized in that it is located in   4. The occupant protection device according to claim 2, wherein the insertion portion includes a concave portion into which the receiving portion enters in the state where the insertion portion enters the receiving portion. 5.   The occupant protection device according to claim 4, wherein an elastic member that presses the opening side of the concave portion in a closing direction is provided, and the elastic member is elastically deformed when the receiving portion enters the concave portion to An occupant protection device that is opened.   6. The occupant protection device according to claim 5, wherein the receiving portion is provided so that the through hole penetrates in the vehicle width direction, while the insertion portion is provided to protrude outward in the vehicle width direction. The locking pin is inserted, and the locking pin includes a head portion having a large diameter at the tip and a shaft portion having a small diameter at the base end, and the movable roll bar on the outer peripheral side of the shaft portion. The position corresponding to the protruding movement direction is a recess into which the receiving portion enters, and an elastic member is provided to press the opening side of the recess in the closing direction, and this elastic member is elastically deformed when the receiving portion enters the recess. And opening the opening side.   7. The occupant protection device according to claim 5, wherein the concave portion is opened upward, and the receiving portion elastically deforms the elastic member when the movable roll bar is operated to protrude, so that the concave portion is formed. An occupant protection device characterized by entering.   The occupant protection device according to claim 5 or 6, wherein the recess is open downward, and the receiving portion elastically deforms the elastic member and enters the recess when the airbag is deployed. An occupant protection device.   5. The occupant protection device according to claim 4, wherein an opening / closing body is provided that moves so that the opening side of the recess can be opened and closed. An occupant protection device comprising a stopper that is pressed by a closed state.   10. The occupant protection device according to claim 9, wherein the concave portion opens upward, and the receiving portion opens the opening / closing body against the elastic means when the movable roll bar protrudes. An occupant protection device characterized in that it enters the recess.   The occupant protection device according to claim 8, wherein the concave portion is opened downward, and when the airbag is deployed, the receiving portion opens the opening / closing body against the elastic means. An occupant protection device that enters the recess.   3. The occupant protection device according to claim 2, wherein the receiving portion is provided so that the through hole penetrates in the vehicle width direction, while the insertion portion is provided to protrude outward in the vehicle width direction. There is provided a locking pin to be inserted, a movable body is provided that can be opened and closed between an opening side between the distal end side of the locking pin and the surrounding side wall portion, and the locking pin is inserted into the through hole. The occupant protection device according to claim 1, wherein when the movable roll bar projects, the movable body moves forward to close the opening side.   4. The occupant protection device according to claim 3, wherein the insertion portion includes a recess that opens in a vehicle front-rear direction in which the receiving portion enters, and a movable body that moves forward and backward to open and close the opening side of each recess. The movable body is inserted into the through-hole when the movable roll bar protrudes and is inserted into the through hole by moving forward in a state where the receiving portion enters the concave portion. apparatus.   The occupant protection device according to claim 12 or 13, wherein the airbag is provided on a door side, and the movable roll bar is provided on a vehicle body side located on the vehicle rear side of the door, and at least opens and closes the door. In some cases, the occupant protection device is characterized in that the movable body is set to a retracted position.   The occupant protection device according to any one of claims 1 to 14, wherein the airbag is provided on a door side, and the movable roll bar is provided on a vehicle body side located on a vehicle body rear side of the door, and at least When the door is opened and closed, the connecting state of the connecting portion is released.   The occupant protection device according to any one of claims 1 to 15, wherein the airbag is provided on the side of the vehicle body on the vehicle rear side of the door, and the movable roll bar is disposed near the vehicle rear side of the door. Provided on the side of the vehicle body, and always connects the front end of the movable roll bar in the protruding direction and the vicinity of the upper end of the bag body in a state in which the airbag provided on the side of the vehicle body near the rear side of the vehicle is deployed. An occupant protection device.   14. The occupant protection device according to claim 12 or 13, wherein when the collision detection means for detecting a collision of the vehicle detects a collision before starting the protruding operation of the movable roll bar, the movable body is not moved forward. An occupant protection device, wherein the airbag is deployed as a retracted position.   The occupant protection device according to any one of claims 1 to 17, wherein the movable roll bar projects upward and its tip is connected to the vicinity of the upper end of the bag body in which the airbag is deployed. The occupant protection device according to claim 1, wherein the connecting portion is located on the outer side in the vehicle width direction with respect to the unfolded bag body.   The occupant protection device according to any one of claims 1 to 18, wherein the movable roll bar projects upward and its tip is connected to the vicinity of the upper end of the bag body in which the airbag is deployed. The unfolded bag body is located on the inner side in the vehicle width direction from a straight line extending from the connecting portion so as to contact a curved surface that protrudes outward from the outer surface of the vehicle body side portion. Crew protection device.   The occupant protection device according to any one of claims 1 to 19, wherein the movable roll bar projects upward and its tip is connected to the vicinity of the upper end of the bag body in which the airbag is deployed. An occupant protection device comprising a pressing body that presses the bag body toward the passenger compartment side between the unfolded bag body and the vehicle body side portion.   21. The occupant protection device according to claim 20, wherein the pressing body protrudes toward the passenger compartment side from a state of being stored inside a vehicle body side portion when the airbag is deployed. apparatus.   23. The occupant protection device according to claim 21, wherein the pressing body is a pressing airbag that is deployed and operated between the deployed bag body and a vehicle body side portion.   23. The occupant protection device according to claim 22, wherein the pressing airbag includes a pressing bag that communicates with an interior of an airbag bag connected to the movable roll bar by the connecting portion. An occupant protection device.   The occupant protection device according to claim 21, wherein the pressing body protrudes from a state housed inside the vehicle body side portion toward the vehicle compartment side between the unfolded bag body and the vehicle body side portion. An occupant protection device characterized by being a protruding member.   The occupant protection device according to any one of claims 1 to 24, wherein the airbag is provided on a door side, and the movable roll bar is provided on a vehicle body side portion on the vehicle body rear side of the door, and protrudes upward. The distal end of the movable roll bar in a state of being connected to the vicinity of the upper end of the bag body that has been moved and deployed is positioned in front of the vehicle relative to the front end of the retracted state before protruding upward. An occupant protection device.   26. The occupant protection device according to any one of claims 1 to 25, wherein the movable roll bar is provided in the vicinity of the connecting portion between a distal end of the movable roll bar in the protruding direction and a bag body of the airbag. An occupant protection device, comprising: a breaking portion that collides with a window shield panel in a closed state and breaks the window shield panel when the airbag is deployed while being projected.   27. The occupant protection device according to claim 26, wherein an outward bending moment strength in a vehicle width direction of a member that holds a lower portion of the closed window shield panel on a side of a vehicle body is expanded when the airbag is deployed. An occupant protection device characterized in that the body is larger than the strength of an outer bending moment of the window shield panel due to a deployment force acting on the window shield panel in the closed state.   28. The occupant protection device according to any one of claims 1 to 27, wherein the movable roll bar is positioned inward in the vehicle width direction at a position close to the vehicle width direction inner side of the movable roll bar in a protruding state. An occupant protection device comprising a deformation suppressing member that receives a load and suppresses the deformation of the movable roll bar when receiving the load.   16. The occupant protection device according to claim 14 or 15, wherein when the airbag is deployed and the movable roll bar is not projected and operated, the movable body is not moved forward, and the airbag is moved to the retracted position. An occupant protection device wherein the connection between the vicinity of the upper end of the bag body and the vicinity of the upper end of the movable roll bar is released.   The occupant protection device according to claim 7 or 10, wherein when the movable roll bar is not deployed when the vehicle rolls over, the airbag is deployed.   The occupant protection device according to any one of claims 1 to 30, wherein the airbag and the movable roll bar are set at the start of the deployment operation of the airbag and the start of the protruding operation of the movable roll bar. An occupant protection device, wherein an openable / closable window shield panel provided on a side of a vehicle body is opened.   The occupant protection device according to any one of claims 1 to 31, further comprising a collision pre-detection means that detects in advance a colliding object with which the vehicle including the airbag and the movable roll bar collides. An occupant characterized in that when the means detects a state in which a vehicle collision cannot be avoided, the movable roll bar protrudes upward and the airbag is deployed to connect the connecting portion. Protective device.   The occupant protection device according to any one of claims 1 to 32, wherein when a collision detection means for detecting a collision of a vehicle detects a collision before the movable roll bar is started to project, the movable type An occupant protection device characterized by stopping the protruding operation of the roll bar.   34. The occupant protection device according to claim 33, wherein when a collision detection means for detecting a collision of the vehicle detects a collision before the movable roll bar starts to project, it is located on a collision side with a collision partner. An occupant protection device characterized in that the movable roll bar is stopped while the movable roll bar located on the non-collision side is protruded.

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